New Delhi: In wake of former CAG official RP Singh claiming his comments on PAC chairman Murli Manohar Joshi on the 2G issue were misquoted, BJP on Monday asked Congress president Sonia Gandhi to retract her statement in which she had attacked the main Opposition party.

"In light of what R P Singh has stated, the BJP would like to know from Sonia Gandhiji would she retract her comment almost condemning the BJP in the most abusive terms," BJP chief spokesperson Ravi Shankar Prasad told reporters outside Parliament.

He said the core issue was rampant corruption in allocation of 2G licences, which were subsequently cancelled by the Supreme Court.

Prasad said it was "deeply regrettable and condemnable" for the Congress president to question the bona fide of BJP which is the principle Opposition party based on "motivated comments" of a retired CAG official.

Singh had recently said that the Public Accounts Committee had suggested one of the methodologies to CAG to calculate the losses due to 2G spectrum allocation, which were pegged at Rs 1.76 lakh crore in its final report.